I will play （volleyball） if it is fine tomorrow（对括号部分提问）What will you play if that's fine tomorrow.
问题描述：
I will play （volleyball） if it is fine tomorrow（对括号部分提问）
What will you play if that's fine tomorrow.
答
括号里的volleyball是名词，所以用what来提问。
再把助动词will提前，因为是问句，所以第一人称I要变成you.
答案：What will you play if it is fine tomorrow?
答
What will you play if that's fine tomorrow。
不对
应该是：
What will you play if the weather is fine tomorrow?
原句的指代内容需要在问句中表示出来。
答
好像不大对，应该是what will you play if it is fine tomorrow？
或者直接是what will you play tomorrow？
答
What will you play if it/the weather is fine tomorrow?
答
What will you play if it is fine tomorrow?
答
what will you play if its fine tomorrow